Supporting device for aero-engine test

The utility model discloses a supporting device for aero-engine test, which belongs to the technical field of aero-engines, and comprises a bottom plate and a fixed box arranged on one side surface of the bottom plate, a rotating circular block is arranged in the fixed box in a penetrating manner, a rotating shaft is arranged on one side surface of the rotating circular block, and a placing groove is formed in the rotating circular block. A plurality of hydraulic telescopic clamping blocks are arranged on the inner wall of the containing groove, cushions are arranged on the opposite side faces of the hydraulic telescopic clamping blocks, a round sleeve is arranged on the circumferential side of the end, away from the rotating motor, of the rotating round block in a sleeving mode, and a plurality of hydraulic telescopic fixing plates are arranged on the periphery of the round sleeve. The opposite side faces of the hydraulic telescopic fixing plates are provided with soft cushions consistent with the connecting